best xposed addons

1_3c toolbox

the must have app why? read this

2_app setting

resident apps in memory, permission manager and more 

3_Gravity Box

Targeted for Android version 4.1+, this is an all-in-one module

 that provides a large range of mods

4_AdBlocker

 like it's name :) 

5_Phab7

Switch Android UI into Phone mode, Phablet mode or Tablet
Also include screen-setting option to display in phone or tablet format.

6_Awesome Pop-up Video

 just a video popup!

7_Instagram Downloader  

8_Zoom for Instagram

to make you able to zoom instagram photos